* {
    margin: 0;
    padding: 0;
    font-family: Tahoma, Helvetica, Arial, "Microsoft Yahei","微软雅黑", STXihei, "华文细黑", sans-serif;
}

#wrapper{
    width: 960px;
    margin: 0 auto;
    border: 1px solid;
    overflow: hidden;
    background-color:whitesmoke;
}

nav{
    float: left;
    width: 150px;
}

nav li{
    list-style-type: none;
}

article{
    float: left;
    width: 660px;
    background-color:white;
}

article p{
    padding: 5px;
    text-indent: 2em;
}

.inner{
    padding: 5px;
}

aside{
    float: left;
    width: 150px;
}

header{
    background-color: antiquewhite;
    padding: 10px;
    font-size: 1.5em;
}

footer{
    clear: both;
    background-color: antiquewhite;
    text-align: center;
    padding: 10px;
}



